Anthropic established Mythos-class as its new capability tier above Opus with the April 2026 Claude Mythos Preview release through Project Glasswing, followed by the June 9 launch of the safeguarded Claude Fable 5 for general availability and the restricted Claude Mythos 5 update. These models demonstrated frontier-level gains in autonomous coding, vulnerability discovery, and long-horizon reasoning that outpaced prior Opus versions, while U.S. regulatory approvals in late June and early July expanded limited access for trusted organizations. No competing labs have announced equivalent model classes with comparable demonstrated cybersecurity or agentic benchmarks, positioning Anthropic to control the next release cycle. Key near-term catalysts include potential broader Mythos expansions, new safeguard iterations, and any rival frontier announcements that could shift the competitive timeline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNext Mythos-Class Model released by…?
Next Mythos-Class Model released by…?
$163,008 Vol.
Sep 29, 2026
August 31
25%
September 15
56%
September 30
77%
$163,008 Vol.
August 31
$45,331 Vol.
25%
September 15
$7,037 Vol.
56%
September 30
$68,566 Vol.
77%
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.Anthropic established Mythos-class as its new capability tier above Opus with the April 2026 Claude Mythos Preview release through Project Glasswing, followed by the June 9 launch of the safeguarded Claude Fable 5 for general availability and the restricted Claude Mythos 5 update. These models demonstrated frontier-level gains in autonomous coding, vulnerability discovery, and long-horizon reasoning that outpaced prior Opus versions, while U.S. regulatory approvals in late June and early July expanded limited access for trusted organizations. No competing labs have announced equivalent model classes with comparable demonstrated cybersecurity or agentic benchmarks, positioning Anthropic to control the next release cycle. Key near-term catalysts include potential broader Mythos expansions, new safeguard iterations, and any rival frontier announcements that could shift the competitive timeline.
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
Market Opened: Jun 10, 2026, 11:10 AM ET
Volume
$163,008End Date
Sep 30, 2026Market Opened
Jun 10, 2026, 11:10 AM ETResolver
0x65070BE91...On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.Anthropic established Mythos-class as its new capability tier above Opus with the April 2026 Claude Mythos Preview release through Project Glasswing, followed by the June 9 launch of the safeguarded Claude Fable 5 for general availability and the restricted Claude Mythos 5 update. These models demonstrated frontier-level gains in autonomous coding, vulnerability discovery, and long-horizon reasoning that outpaced prior Opus versions, while U.S. regulatory approvals in late June and early July expanded limited access for trusted organizations. No competing labs have announced equivalent model classes with comparable demonstrated cybersecurity or agentic benchmarks, positioning Anthropic to control the next release cycle. Key near-term catalysts include potential broader Mythos expansions, new safeguard iterations, and any rival frontier announcements that could shift the competitive timeline.
On June 9, 2026, Anthropic released the Mythos-class model Claude Fable 5.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
This market will resolve to "Yes" if Anthropic releases the next Mythos-class model and makes it available to the general public by the listed date (ET). Otherwise, this market will resolve to "No."
Any model whose official name includes “Mythos,” or that Anthropic officially describes as a “Mythos-class” model or similar, will qualify for this market’s resolution.
For this market to resolve to "Yes," the qualifying model (as defined above) must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must be clearly defined and publicly announced by Anthropic as being accessible to the general public.
If a qualifying model is made publicly accessible and labeled with the relevant version name within the company’s official website, this will qualify as “publicly announced”. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public under the rules will not qualify.
The primary resolution source for this market will be official information from Anthropic; however, a consensus of credible reporting will also be used.
Volume
$163,008End Date
Sep 30, 2026Market Opened
Jun 10, 2026, 11:10 AM ETResolver
0x65070BE91...Anthropic established Mythos-class as its new capability tier above Opus with the April 2026 Claude Mythos Preview release through Project Glasswing, followed by the June 9 launch of the safeguarded Claude Fable 5 for general availability and the restricted Claude Mythos 5 update. These models demonstrated frontier-level gains in autonomous coding, vulnerability discovery, and long-horizon reasoning that outpaced prior Opus versions, while U.S. regulatory approvals in late June and early July expanded limited access for trusted organizations. No competing labs have announced equivalent model classes with comparable demonstrated cybersecurity or agentic benchmarks, positioning Anthropic to control the next release cycle. Key near-term catalysts include potential broader Mythos expansions, new safeguard iterations, and any rival frontier announcements that could shift the competitive timeline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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